Update the release scripts to include the breaking changes section

extras/scripts/extract_changes.awk

@@ -0,0 +1,29 @@
+#!/usr/bin/awk -f
+
+# Start echoing after the first list item
+/\* / {
+    STARTED=1
+    EMPTY_LINE=0
+}
+
+# Remember if we have seen an empty line
+/^[[:space:]]*$/ {
+    EMPTY_LINE=1
+}
+
+# Exit when seeing a new version number
+/^v[[:digit:]]/ {
+    if (STARTED) exit
+}
+
+# Print if the line is not empty
+# and restore the empty line we have skipped
+!/^[[:space:]]*$/ {
+    if (STARTED) {
+        if (EMPTY_LINE) {
+            print ""
+            EMPTY_LINE=0
+        }
+        print
+    }
+}